SECT. 11 



PHANEROGAMIA 



491 



II. Cymose Inflorescences. 



(«) Tlie relatively main axis bearing more than two lateral branclie.s ; 



Pleiochasium. 

 (b) Each relatively main axis bears two lateral branches ; DiCHASiUM (Figs. 



449 E, 450). 



Fio. 443.— Diagrams of racemose inflorescences. A, Raceme. B, Siiike. C, Umbel. 

 D, Capitulum. E, Panicle. F, Comtjound umbel. 



(c) Each relatively main axis beai's one lateral branch ; Monochasium. 

 1. The successive lateral axes all fall in the median plane. 



(a) all the branches arise on the same side ; Dkepanium (Fig. 449 C, D). 

 ((3) branches alternately right and left ; Rhipidium (Fig. 449 J, B ; Fig. 

 773, Iris). 



